Liquid droplet jetting apparatus having liquid-repellent...

Details Liquid droplet jetting apparatus having liquid-repellent... Liquid droplet jetting apparatus having liquid-repellent...

2006-02-16

2009-02-03

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S047000

Reexamination Certificate

active

07484829

ABSTRACT:
A plurality of nozzles is formed in a nozzle plate. A first liquid repellent film which surrounds an ejecting port of each of the nozzles and which has a liquid repellent property higher than a liquid repellent property of an inner surface of the nozzle is formed on an ink discharge surface. A second liquid repellent film which has a liquid repellent property higher than the liquid repellent property of the first liquid repellent film is formed on an outer side of the first liquid repellent film. A boundary between the first liquid repellent film and the second liquid repellent film is on a circle which is concentric with a circle forming a circumference of the ejecting port of the nozzle. Discharge characteristics of liquid droplets which are discharged from the nozzle can be stabilized.

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European Patent Office, European Search Report for Related Application No. EP 06003023, dated Jul. 13, 2007.

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